Home / 12,879,774.29-17,774,514.78-7,078,761.65

Finding the Fourth Proportional to 12,879,774.29, 17,774,514.78 and 7,078,761.65

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Solution

The fourth proportional to 12,879,774.29, 17,774,514.78 and 7,078,761.65 is: 9,768,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,774.29 : 17,774,514.78 = 7,078,761.65 : x
  2. Step 2: Convert to fraction form
    12,879,774.29/17,774,514.78 = 7,078,761.65/x
  3. Step 3: Cross multiply
    12,879,774.29x = 17,774,514.78 × 7,078,761.65
  4. Step 4: Simplify right side
    12,879,774.29x = 125,821,553,572,022.20
  5. Step 5: Solve for x
    x = 125,821,553,572,022.20/12,879,774.29
  6. Step 6: Final answer
    x = 9,768,925.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.